What type of ATF?
Seasoned Member
Joined: Oct 2012
Posts: 486
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From: Long Island, New York
Year: 1996
Model: Cherokee
Engine: 4.0L I6 (The best engine ever made)
no, I'd stick to dex/merc. When you put synthetics in trannys not designed around it, they usually slip/leak. And whatever you do don't think of using ATF 4!! It's not the right tranny fluid, no matter what chrysler says! Read the rest of this thread for more info about how chrysler is lying to us for their own benefit
Last edited by pdowty68; Feb 10, 2014 at 07:12 PM.
Herp Derp Jerp
Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Transmission however I wouldn't put any of that **** in. Almost none of Lucas' products meet any certifications, that product certainly has none listed whatsoever and is the exact kind of "multi-everything" ATF we've been cautioning on.
If you want a synthetic for the AW4, Castrol Transmax, Valvoline MaxLife, and AMSOIL are good choices. Get the Dex/Merc variety.
CF Veteran
Joined: May 2013
Posts: 1,056
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From: Washington, MO
Year: 2000
Model: Cherokee
Engine: 4.0
I run Valvoline Dex/Merc in my xfer case and trans.
How do you switch over to Maxlife? Just start doing drain and refills with it? Is that okay to do if the Valvoline Dex/Merc is in there now?
How do you switch over to Maxlife? Just start doing drain and refills with it? Is that okay to do if the Valvoline Dex/Merc is in there now?
Herp Derp Jerp
Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Most efficient way is to let the transmission's pump just exchange all of the fluid at once. Check out this guy's post https://www.cherokeeforum.com/f2/how...7/#post2630897
Junior Member
Joined: Oct 2013
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From: Englishtown N.J
Year: 1991
Model: Cherokee
Engine: 4.0 High Output
Mobil 1 MTF
Mobil 1 Synthetic Gear Lubricant LS 75W-90
Supreme Performance Synthetic Multi-Purpose Automotive Gear Lubricant
Product Description
Features and Potential Benefits
Advantages and Potential BenefitsExceptional thermal stability and resistance to high temperature oxidationHelps to extend gear and bearing life due to minimal deposits
Long seal life
Potential extended oil drain/service intervalsOutstanding protection against low speed/high torque wear and against high speed scoring
Capability to handle some of the severest driving conditions while delivering smooth efficient and reliable performanceExceptional shear stabilityHelps to retain viscosity and film strength under severe operating conditions to prevent wear
Excellent rust, staining and corrosion protection of copper and its alloys
Helps to reduce wear
Long component life
Enhanced frictional propertiesImproved fuel economy and reduced operating costsOutstanding low temperature fluidity versus mineral oilsHelps to reduce wear at start up and ease of start up even in arctic conditionsGood resistance to foamingHelps to maintain film strength for reliable lubricationCompatible with typical automotive seals and gaskets
Helps to minimize leakage and reduce contaminationExcellent limited-slip performance
From their website
So, does that mean it is okay??
Supreme Performance Synthetic Multi-Purpose Automotive Gear Lubricant
Product Description
Mobil 1 Synthetic Gear Lubricant LS is a supreme performance, synthetic, multi-purpose, SAE 75W-90 automotive gear lubricant designed to help meet the highest level performance requirements of modern passenger vehicles in all types of operating conditions including limited slip applications, as well as, deliver outstanding power transfer performance. Compared to conventional hypoid gear lubricants, Mobil 1 Synthetic Gear Lubricants LS 75W-90 performs exceptionally over a wide range of temperatures. Mobil 1 Synthetic Gear Lubricant LS 75W-90 achieves this through a unique proprietary formulation, that deliver optimized viscosity-temperature properties together with the highest level of inherent formulation stability and helps to protect against thermal and oxidative degradation, wear and corrosion, viscosity loss associated with premature shearing. It also can be used in extended service and for aiding in fuel economy performance.
Features and Potential Benefits
Mobil 1 Synthetic Gear Lubricant LS 75W-90 combines wax-free synthesized hydrocarbon base oils and a specially designed extreme-pressure, limited-slip, sulfur-phosphorous additive system to help provide a significantly higher level of performance in rear axles and differentials versus conventional fluids.
Great film strength at higher operating temperatures, reduced fluid friction and low-temperature application down to -50ºC helps to provide significant advantages versus conventional mineral oil formulations. It helps to reduce wear and spalling under the high speed, high torque and high horsepower conditions in competitive racing and high performance automobiles. This unique, high technology final drive gear lubricant has demonstrated outstanding performance including fuel economy, extended drain, long-term friction retention, low-temperature capability and improved differential/axle durability and cleanliness. Key features and potential benefits include:
FeaturesGreat film strength at higher operating temperatures, reduced fluid friction and low-temperature application down to -50ºC helps to provide significant advantages versus conventional mineral oil formulations. It helps to reduce wear and spalling under the high speed, high torque and high horsepower conditions in competitive racing and high performance automobiles. This unique, high technology final drive gear lubricant has demonstrated outstanding performance including fuel economy, extended drain, long-term friction retention, low-temperature capability and improved differential/axle durability and cleanliness. Key features and potential benefits include:
Advantages and Potential BenefitsExceptional thermal stability and resistance to high temperature oxidationHelps to extend gear and bearing life due to minimal deposits
Long seal life
Potential extended oil drain/service intervalsOutstanding protection against low speed/high torque wear and against high speed scoring
Capability to handle some of the severest driving conditions while delivering smooth efficient and reliable performanceExceptional shear stabilityHelps to retain viscosity and film strength under severe operating conditions to prevent wear
Excellent rust, staining and corrosion protection of copper and its alloys
Helps to reduce wear
Long component life
Enhanced frictional propertiesImproved fuel economy and reduced operating costsOutstanding low temperature fluidity versus mineral oilsHelps to reduce wear at start up and ease of start up even in arctic conditionsGood resistance to foamingHelps to maintain film strength for reliable lubricationCompatible with typical automotive seals and gaskets
Helps to minimize leakage and reduce contaminationExcellent limited-slip performance
From their website
So, does that mean it is okay??
Last edited by charliek; Feb 10, 2014 at 08:54 PM.
Seasoned Member
Joined: Oct 2012
Posts: 486
Likes: 2
From: Long Island, New York
Year: 1996
Model: Cherokee
Engine: 4.0L I6 (The best engine ever made)
Mobil 1 Synthetic Gear Lubricant LS 75W-90 Supreme Performance Synthetic Multi-Purpose Automotive Gear Lubricant Product Description Mobil 1 Synthetic Gear Lubricant LS is a supreme performance, synthetic, multi-purpose, SAE 75W-90 automotive gear lubricant designed to help meet the highest level performance requirements of modern passenger vehicles in all types of operating conditions including limited slip applications, as well as, deliver outstanding power transfer performance. Compared to conventional hypoid gear lubricants, Mobil 1 Synthetic Gear Lubricants LS 75W-90 performs exceptionally over a wide range of temperatures. Mobil 1 Synthetic Gear Lubricant LS 75W-90 achieves this through a unique proprietary formulation, that deliver optimized viscosity-temperature properties together with the highest level of inherent formulation stability and helps to protect against thermal and oxidative degradation, wear and corrosion, viscosity loss associated with premature shearing. It also can be used in extended service and for aiding in fuel economy performance. Features and Potential Benefits Mobil 1 Synthetic Gear Lubricant LS 75W-90 combines wax-free synthesized hydrocarbon base oils and a specially designed extreme-pressure, limited-slip, sulfur-phosphorous additive system to help provide a significantly higher level of performance in rear axles and differentials versus conventional fluids. Great film strength at higher operating temperatures, reduced fluid friction and low-temperature application down to -50ºC helps to provide significant advantages versus conventional mineral oil formulations. It helps to reduce wear and spalling under the high speed, high torque and high horsepower conditions in competitive racing and high performance automobiles. This unique, high technology final drive gear lubricant has demonstrated outstanding performance including fuel economy, extended drain, long-term friction retention, low-temperature capability and improved differential/axle durability and cleanliness. Key features and potential benefits include: FeaturesAdvantages and Potential BenefitsExceptional thermal stability and resistance to high temperature oxidationHelps to extend gear and bearing life due to minimal deposits Long seal life Potential extended oil drain/service intervalsOutstanding protection against low speed/high torque wear and against high speed scoringCapability to handle some of the severest driving conditions while delivering smooth efficient and reliable performanceExceptional shear stabilityHelps to retain viscosity and film strength under severe operating conditions to prevent wearExcellent rust, staining and corrosion protection of copper and its alloysHelps to reduce wear Long component lifeEnhanced frictional propertiesImproved fuel economy and reduced operating costsOutstanding low temperature fluidity versus mineral oilsHelps to reduce wear at start up and ease of start up even in arctic conditionsGood resistance to foamingHelps to maintain film strength for reliable lubricationCompatible with typical automotive seals and gasketsHelps to minimize leakage and reduce contaminationExcellent limited-slip performance So, does that mean it is okay?? Helps to reduce c
Member
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From: New Orleans, Louisiana
Year: 98'
Model: Cherokee
Engine: 4.0L I6
Senior Member
Joined: Nov 2012
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From: Harrisburg, Pennsylvania
Year: 1995
Model: Cherokee
Engine: 4.0L HO
Originally Posted by charliek
Mobil 1 Synthetic Gear Lubricant LS 75W-90 combines wax-free synthesized hydrocarbon base oils and a specially designed extreme-pressure, limited-slip, sulfur-phosphorous additive system to help provide a significantly higher level of performance in rear axles and differentials versus conventional fluids.
sulfur-phosphorous = bad for bronze/brass, this Lube should not be used in a synchronized transmission, note in the description it says hypoid, axle, and differential many times but never mentions use in transmissions as it was not designed to be used in transmissions.
Seriously RedLine MT-90 is spectacular in the AX-15, you may have already done damage with sulfur-containing GL-5 lube but don't leave that stuff in there, the longer you have sulfur-containing oil in the trans the more damage that is done. If you can't get or don't want to spend the money for MT-90 at least get some GL-3 in there.
Herp Derp Jerp
Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Okay for what? It's fantastic oil for differentials.
Incidentally I found some on the shelf at my local NAPA. Best stuff I've ever put in my AX-15, and yes, I even tried 10w30.
Since we're on the subject of Chrysler breaking Aisin transmissions out of warranty, a similar thing occurred when they stopped carrying GL-3: All of a sudden they superceded the part number, and that was that.
Seriously RedLine MT-90 is spectacular in the AX-15, you may have already done damage with sulfur-containing GL-5 lube but don't leave that stuff in there, the longer you have sulfur-containing oil in the trans the more damage that is done. If you can't get or don't want to spend the money for MT-90 at least get some GL-3 in there.
Since we're on the subject of Chrysler breaking Aisin transmissions out of warranty, a similar thing occurred when they stopped carrying GL-3: All of a sudden they superceded the part number, and that was that.
Junior Member
Joined: Oct 2013
Posts: 52
Likes: 0
From: Englishtown N.J
Year: 1991
Model: Cherokee
Engine: 4.0 High Output
MTF
Okay I will drain and switch. The Mobil 1 was previously highly recommended so I used it. I also already have the Redline MT90. That also has been highly recommended so is that also no good? I am only asking because I already have 4 quarts of it.
Herp Derp Jerp
Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Redline MT-90 is specifically designed for transmissions like the AX-15. It does not have sulphurous EP additives.
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0